iOS 13.0 (build 17A5547d) is an official Apple over-the-air update for the iPhone 6s, released on 2019-07-29T17:17:30Z. The update package is 609.5 MB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8e6971a356dfccd93a6238fa9dbe0efb13998a54.zip.